Ratchet mechanism for presses



Jan. 6. 1925. 1,522,009

A. P. GIUNTA ET AL RA'ICHET.MECHANISM FOR PRE SSES,

Filed April 5, 1924- 2 Sheets-Sheet 1 gwuentou Ala/ g N i W 4 .60 o o 0 o o Jan. 1925. 4 1,522,009

A. P. GIUNTA ET AL RATCHET MECHANISM FOR PRESSES Filed April 5, 1924' 2 Sheets-Sheet 2 umil gvwwwiou Patented Jan. 6, 1925 UITED Iii- ANTHONY P. GIUNTA AND CHARLES P. GIU

NTA, OF PHILADELPHIA, PENNSYLVANIA.

RATCHET MECHANISM FOR PRESSES.

Application filed April 5,

To all whom it may concern Be it known that we, ANTHONY P. GIUNTA and OIiARLEs P. GIUNTA, citizens of the United States, residing at Philadelphia, county of Philadelphia, and State of Pennsylvania, have invented certain new and useful Improvements in Ratchet Mechanism for Presses, of which the following is specification.

Our invention relates to presses for extracting fruit juices and more particularly to ratchet mechanism for rotating the pressing nut on the screw. The objects are to provide a ratchet mechanism ofsimple, compact and durable construction which will have all of its moving parts enclosed to exclude foreign matter and which may be reversed without removing the'nut from the screw.

These objects, and other advantageous ends which will be described hereinafter, we attain in the following manner, reference being had to the accompanying drawings in which:

Figure 1 is a side elevation of a press having our ratchet mechanism applied thereto,

Figure 2 an enlarged plan view of the ratchet mechanism shown in Figure 1, certain of the parts being omitted,

Figure 3 a section on line 33 of Figure Figure 4 a section on line 4-4 of Figure 2, and

Figure 5 a section on line 55 of Figure 4.

Referring to the drawings, 1 indicates the base of a press, 2 the cage, 3 the pressing blocks, 4 the pressing flange, 5 the screw which is secured to the base 1, and 6 our improved ratchet mechanism attached to the screw and engaging flange 4.

The ratchet mechanism includes a casing 7 having a cavity 8, a central opening 9 within the cavity, a groove 10 communicating with the cavity and a hole 11 communicating with the groove. A ratchet wheel 12 has its bore 13 threaded, one end of its hub 14 projecting through opening 9 and its teeth 15 projecting horizontally within cavity 8. A plunger 16, slidably mounted in hole 11, has a pawl 17 on one end and a reversing knob 18 on the other end. A spring 19 is interposed between pawl 17 and the casing at one side of the hole to keep the pawl in engagement with the ratchet wheel.

1924. Serial No. 704,344.

Knob 18 normally engages the casing at the other side of the hole. A pin 20 secured to the knob is adapted to engage within either of the pin-holes 21 and 22 for keeping the pawl in the forward or reverse position. A plate 23, having an opening 24 fitting over the other end 25 of the ratchet wheel hub, covers cavity 8 and groove 10. This plate is secured to the casing by bolts 26 and may be additionally secured by tap bolts 27. A handle socket 28'is integral with casing 7 and may be duplicated diametrically opposite the casing as shown indot-and-dash lines at 29 to provide a two-man ratchet. The ratchet wheel 12 serves as the pressing nut which engages pressing flange -4.

In use, a handle is inserted in socket-28 as shown in dot-and-dash lines at 30 and the casing oscillated on the hub of the ratchet wheel. As the casing is oscillated, pawl 17 will ride over teeth 15 in one direction and will catch the teeth in the other direction and thereby move the ratchet wheel. A continuous oscillating movement of the handle will rotate ratchet wheel 12 on screw 5 and cause it to move downward to press the fruit. To reverse the ratchet mechanism, knob 18 is pulled outward against the action of spring 19 until pin 20 clears hole 21. The knob is then turned and moved inward until the pin takes into hole 22. Pawl 17 will then be reversed and an oscillating move ment of casing 7 will cause the ratchet wheel to turn in the reverse direction.

With our improved ratchet mechanism no foreign matter, such as the fruits which are to be pressed, will fall between the moving parts while being placed in the cage, and the mechanism may be reversed without removing the nut from the screw. By enclosing the moving parts, danger of getting the fingers caught therebetween is avoided and a neat and compact article produced.

While we have described our invention as taking a particular form, it will be understood that the various parts may be changed without departing from the spirit thereof,

and hence we do not limit ourselves to the precise construction set forth, but consider that we are at liberty to make such changes and alterations as fairly come within the scope of the appended claims.

Having thus described our invention, what we claim as new and desire to secure by Letters Patent is 1. Ratchetmechanism including a casing having-a cavity, an opening in the cavity, a groove communicating with the cavity and a hole communicating with the groove; a ratchet wheel having its teeth in the cavity and one end of its hub projectmg through the opening; a spring-pressed pawl slidable in the groove and hole-and engaging the teeth and means, embracing the other end of the ratchet wheel hub, covering the cavity and groove. I V

2. Ratchet mechanism including a casing having a cavity, an opening in the cavity, a groove communicating with the cavity and a hole communicating with the groove; a ratchet wheel having its teethin thecavity and one end of its hub projectingthrough the opening; a spi'ingqvressed pawl slidable in the groove and hole and engaging the teeth and a plate, embracing the other end ofthe ratchet wheel hub covering the cavity and grooveq 3. Ratchet mechanism including a casing having a cavity, anopening in the cavity, a groove communicating with the cavity and a hole communicating with the igrooveya ratchet wheel having'its teeth in the cavity and. one .end of its hub projecting through the opening; a plunger passing through the hole; a pawl fixed to the plunger; a spring between the pawl and the casing; means on the other end of the plunger for reversing the pawl and holding it in either position, and a plate embracing the other end of the ratchet wheel hub, covering the cavity and groove.

,4. .Ratchet mechanism including a casing having a cavity, an opening in the center of the cavity, a groove communicating with the cavity and a hole communicating with the groove; va ratchet wheel having its teeth in tue cavity and one end of its hub projecting through the opening; a plunger passing through the hole; a pawl fixed to the plunger; a spring between the pawl and the casing; a knob on the plunger for re versing the pawl, and a pin on the knob adapted to engage the casing for keeping the pawl in either position. J

In testimony whereof we have signed our names to thisspecification in the presence of two subscribing witnesses.

ANTHONY P. .GIUNTA. CHARLES P. GIUNTA.

WVitnesses: v c

ELIZABETH GARBE,

CHAS. E. Po'rrs. 

